/*
 *  Copyright 2012 MyBatis.org
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.mybatis.generator.plugins;

import java.util.List;

import org.mybatis.generator.api.IntrospectedTable;
import org.mybatis.generator.api.PluginAdapter;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.api.dom.java.JavaVisibility;
import org.mybatis.generator.api.dom.java.Method;
import org.mybatis.generator.api.dom.java.TopLevelClass;

public class ToJSONPlugin extends PluginAdapter {
	public boolean validate(List<String> warnings) {
		return true;
	}

	@Override
	public boolean modelBaseRecordClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
		generateToString(introspectedTable, topLevelClass);
		return true;
	}

	@Override
	public boolean modelRecordWithBLOBsClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
		generateToString(introspectedTable, topLevelClass);
		return true;
	}

	@Override
	public boolean modelPrimaryKeyClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
		generateToString(introspectedTable, topLevelClass);
		return true;
	}

	private void generateToString(IntrospectedTable introspectedTable, TopLevelClass topLevelClass) {
		Method method = new Method();
		method.setVisibility(JavaVisibility.PUBLIC);
		method.setReturnType(FullyQualifiedJavaType.getStringInstance());
		method.setName("toString"); //$NON-NLS-1$
        if (introspectedTable.isJava5Targeted()) {
            method.addAnnotation("@Override"); //$NON-NLS-1$
        }
        
		context.getCommentGenerator().addGeneralMethodComment(method, introspectedTable);

		method.addBodyLine("return JSONUtils.object2Json(this);"); //$NON-NLS-1$

		topLevelClass.addMethod(method);
	}
}
